National Geographic : 1919 Aug
Beautiful Teeth Mean Teeth Without Film All Statements Approved by High Dental Authorities It is film on your teeth - that slimy film - which causes most tooth troubles. You fail to end it by old methods of tooth cleaning. So teeth discolor and decay. That film clings to teeth. It enters crevices, hardens and stays. It absorbs stains, so the teeth discolor. It is the basis of tartar. It holds food substance which ferments and forms acid. It holds the acid in contact with the teeth to cause decay. Millions of germs breed in it. They, with tartar, are the The New-Day chief cause of pyor.- A Scientific Product-Sold rhea. So the great problem of teeth cleaning is to -daily combat that film. A way has been found to do that. Authorities have proved this by convinc ing clinical tests. Now that way is em bodied in a dentifrice called Pepsodent. and we urge you to see what it does. Watch It 10 Days Analysis shows that this film is albu minous. Pepsodent is based on pepsin, the digestant of albumin. The object is to dissolve the film, then to constantly combat it. Pepsin alone can't do that. It must be activated, and the usual method is an acid, harmful to the teeth. That made activated pepsin impossible on teeth. But science has discovered a harmless activating method. Patents have been granted by five governments already. That method is now used in Pepsodent to solve this great film problem. Let it prove itself. PAT.OFF Send the coupon , ^ t for a io-Day Tube. Use like any tooth paste. Note how Dentifrice clean the teeth feel by Druggists Everywhere after using. Mark the absence of the slimy film. See how teeth whiten as the fixed film disappears. Your present methods are not ending film. See what this new-day method does. It will be a revelation. 198 II Ten-Day Tube Free : THE PEPSODENT COMPANY I I SDept. 588, 1104 S. Wabash Ave., Chicago, Ill. I Mail Ten-Day Tube of Pepsodent to I I I I I IName_ I I i Address I "Mention The Geographic-It identifies you"